private LinkedInResponse<IEnumerable<LinkedInGroupComment>> getComments(
LinkedInGetGroupPostCommentsOptions options)
{
try
{
return new LinkedInResponse<IEnumerable<LinkedInGroupComment>>(RequestRunner.GetPostComments(options),
LinkedInResponseStatus.OK, options.PostId);
}
catch (WebException wex)
{
return Utils.GetResponse<IEnumerable<LinkedInGroupComment>>(null, wex, null);
}
catch (Exception ex)
{
return new LinkedInResponse<IEnumerable<LinkedInGroupComment>>(null, LinkedInResponseStatus.OtherException, null, ex);
}
}
/// <summary>
/// Gets group post's comments asynchronously
/// </summary>
/// <param name="options">The object of type <see cref="LinkedInGetGroupPostCommentsOptions"/> representing retrieval options</param>
/// <param name="action">Action to be invoked when the retrieval process ends</param>
/// <returns>Status of asynchronous operation</returns>
/// <example>
/// This sample shows how to call this method:
/// <code>
/// using LinkedIn.NET;
/// using LinkedIn.NET.Groups;
/// using LinkedIn.NET.Members;
/// using LinkedIn.NET.Options;
/// using LinkedIn.NET.Search;
/// using LinkedIn.NET.Updates;
/// ...
/// // define retrieval options
/// var options = new LinkedInGetGroupPostCommentsOptions();
/// options.CommentOptions.SelectAll();
/// options.PostId = 12345;
/// _Client.GetPostComments(options, commentsReceived);
/// ...
/// // application defined function
/// private void commentsReceived(LinkedInResponse<IEnumerable<LinkedInGroupComment>> response)
/// {
/// // always check response.Result and response.Status before processing
/// if (response.Result != null && response.Status == LinkedInResponseStatus.OK)
/// {
/// foreach (var c in response.Result)
/// {
/// Console.WriteLine(c.Text);
/// }
/// }
/// else
/// {
/// // show possible error message LinkedIn response
/// MessageBox.Show(response.Message);
/// }
/// }
/// </code>
/// </example>
public IAsyncResult GetPostComments(LinkedInGetGroupPostCommentsOptions options,
Action<LinkedInResponse<IEnumerable<LinkedInGroupComment>>> action)
{
ListCommentsDelegate _delegate = getComments;
return _delegate.BeginInvoke(options, getCommentsCallback, action);
}
internal static IEnumerable<LinkedInGroupComment> GetPostComments(LinkedInGetGroupPostCommentsOptions options)
{
var comments = new List<LinkedInGroupComment>();
var sb = new StringBuilder(Utils.POSTS_COMMENTS_URL.Replace("{POST_ID}", options.PostId));
var postParameters = RequestFields.PrepareGroupPostCommentFields(options);
if (!string.IsNullOrEmpty(postParameters))
sb.Append(postParameters);
sb.Append("?");
var start = 0;
var fetched = 0;
while (true)
{
var request = new StringBuilder(sb.ToString());
request.Append("start=");
request.Append(start);
request.Append("&");
request.Append("count=");
request.Append(10);
request.Append("&");
request.Append("oauth2_access_token=");
request.Append(Singleton.Instance.AccessToken);
var responseString = Utils.MakeRequest(request.ToString(), "GET");
var xdoc = XDocument.Parse(responseString);
var xroot = xdoc.Root;
if (xroot == null || xroot.Attribute("total") == null || !xroot.Elements("comment").Any())
break;
var total = Convert.ToInt32(xroot.Attribute("total").Value.Trim());
var count = xroot.Attribute("count") == null
? total
: Convert.ToInt32(xroot.Attribute("count").Value.Trim());
fetched += count;
comments.AddRange(xroot.Elements("comment").Select(Utils.BuildGroupComment));
if (fetched >= total)
break;
start += count;
}
return comments.AsEnumerable();
}
protected async void GetComments(string postId)
{
LinkedInGroupPost post = posts[postId];
LinkedInGroup group = postGroup[post.Id];
LinkedInGetGroupPostCommentsOptions commentOptions = new LinkedInGetGroupPostCommentsOptions();
commentOptions.CommentOptions.SelectAll();
commentOptions.PostId = post.Id;
await Task.Run(() => post.LoadComments(commentOptions));
foreach (LinkedInGroupComment comment in post.Comments)
{
CreateCarrier("LinkedInComment", signal =>
{
signal.LinkedInGroup.Name.Text.Value = group.Name;
signal.LinkedInGroup.Id = group.Id;
signal.LinkedInPost.Title.Text.Value = post.Title;
signal.LinkedInPost.Id = post.Id;
signal.CreationTime = comment.CreationTime;
signal.Comment = comment.Text;
signal.LinkedInCommentCreator.PersonName.Name.Text.Value = comment.Creator.FirstName + " " + comment.Creator.LastName;
});
}
}
/// <summary>
/// Loads post's comments
/// </summary>
/// <param name="options"><see cref="LinkedInGetGroupPostCommentsOptions"/> object representing comments retrieval options</param>
/// <returns>Request result</returns>
/// <remarks>This is synchronous operation, i.e. the current thread will be suspended until it finishes to load all comments. If you want to load post's comments asynchronously, consider to use <see cref="LinkedInClient.GetPostComments"/> function instead</remarks>
public LinkedInResponse<bool> LoadComments(LinkedInGetGroupPostCommentsOptions options)
{
try
{
if (_Comments == null)
_Comments = new List<LinkedInGroupComment>();
else
_Comments.Clear();
options.PostId = Id;
_Comments.AddRange(RequestRunner.GetPostComments(options));
return new LinkedInResponse<bool>(true, LinkedInResponseStatus.OK, null);
}
catch (WebException wex)
{
return Utils.GetResponse(false, wex, null);
}
catch (Exception ex)
{
return new LinkedInResponse<bool>(false, LinkedInResponseStatus.OtherException, null, ex);
}
}
internal static string PrepareGroupPostCommentFields(LinkedInGetGroupPostCommentsOptions options)
{
var sb = new StringBuilder();
var gc = options.CommentOptions;
if (!gc.HasValues) return sb.ToString();
sb.Append(":(");
if (gc[LinkedInGroupPostCommentFields.Id])
sb.Append("id,");
if (gc[LinkedInGroupPostCommentFields.Text])
sb.Append("text,");
if (gc[LinkedInGroupPostCommentFields.Creator])
sb.Append("creator,");
if (gc[LinkedInGroupPostCommentFields.CreationTime])
sb.Append("creation-timestamp,");
if (gc[LinkedInGroupPostCommentFields.RelationToViewer])
sb.Append("relation-to-viewer,");
sb.Length -= 1;
sb.Append(")");
return sb.ToString();
}
